*{
    margin: 0;
    padding: 0;
    user-select: none;
}
body{
    padding: 20px;
}
.all{
    display: flex;
    width: 900px;
    .map{
        width: 200px;
        height: 200px;
        background-size: cover;
        margin-left: 20px;
    }
}
.box{
    position: relative;
    width: 540px;
    height: 540px;
    border: 1px solid red;
    .item{
        position: absolute;
        background-color: #fff;
        z-index: 100;
        transition: 0.5s;
    }
    .mask{
        position: absolute;
        width: 100%;
        height: 100%;
        z-index: 2000;
        background-color: transparent;
        left: 0;
        top: 0;
    }
}
.reset{
    margin-top: 10px;
    width: 100px;
    height: 50px;
    border: 1px solid red;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 4px;
}